1 Chronicles 24:6

Shemaiah the scribe, son of Nethanel, a Levite, recorded them in the presence of the king, the princes, Zadok the priest, Ahimelech son of Abiathar [the priest who escaped being killed at Nob by Saul and fled to David], and the heads of the fathers'' houses of the priests and Levites--one father''s house being taken alternately for Eleazar and one for Ithamar.